* smaller kernel with no real time futexes
@ 2007-08-01 19:24 Andi Kleen
2007-08-01 23:10 ` Jakub Jelinek
0 siblings, 1 reply; 2+ messages in thread
From: Andi Kleen @ 2007-08-01 19:24 UTC (permalink / raw)
To: Adrian Bunk; +Cc: linux-kernel
Adrian,
You said earlier you're looking at smaller allnoconfig kernels.
One thing I noticed recently that realtime pi futexes are always
enabled and that pulls in a lot of other code (like the plists)
Userland needs to handle them not being available anyways for older
kernels.
Might be worth looking into turning that into a CONFIG.
-Andi
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: smaller kernel with no real time futexes
2007-08-01 19:24 smaller kernel with no real time futexes Andi Kleen
@ 2007-08-01 23:10 ` Jakub Jelinek
0 siblings, 0 replies; 2+ messages in thread
From: Jakub Jelinek @ 2007-08-01 23:10 UTC (permalink / raw)
To: Andi Kleen; +Cc: Adrian Bunk, linux-kernel
On Wed, Aug 01, 2007 at 09:24:34PM +0200, Andi Kleen wrote:
> Adrian,
>
> You said earlier you're looking at smaller allnoconfig kernels.
> One thing I noticed recently that realtime pi futexes are always
> enabled and that pulls in a lot of other code (like the plists)
>
> Userland needs to handle them not being available anyways for older
> kernels.
>
> Might be worth looking into turning that into a CONFIG.
That's a very bad idea. glibc configured for 2.6.18 and higher kernels
assumes PI futexes are present.
Jakub
^ permalink raw reply [flat|nested] 2+ messages in thread
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